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幾種生態下泄流量監測的常用方法
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幾種生態下泄流量監測的常用方法 2020-05-09 14:09:23 幾種生態下泄流量監測的常用方法 0

      水電站生態下泄流量監測與當地生態環境息息相關,各地環保局對所管轄區內的水電站要求全部安裝生態下泄流量監測系統,把數據實時上報省環保廳。

?一、人工抽水下泄式

??現場環境:單獨安裝一臺水泵直接抽水下泄,無需任何土建施工,只要有電即可;

       計量方式:人工抽水泄放生態流量,可以直接根據水泵功率換算水泵揚程,從而計算出下泄流量數據,此種模式通過監測水泵電流來判斷是否在下泄流量,只需監測水泵功率即可換算下泄流量值;

??特點:安裝極為簡單,費用低;適用范圍較小,需要電源持續給水泵供電,消耗電力資源。

??二、機組發電下泄式

??現場環境:通過機組發電功率來換算下泄流量,此種方式與第一類相似;

計量方式:直接監測機組發電量,來推算下泄流量數據,此種模式只需要安裝計量電表即可,通過發電功率計算下泄流量值;

??特點:安裝簡單,費用較低;適用范圍較小,只有壩后式水電站采用此種方式。

??三、渠道下泄式

??現場環境:出水口是渠道形式,因渠道形狀多數為不規則,需人工修建量水堰槽;


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